Linux 6.9-rc1

[linux-2.6-microblaze.git] / mm / hugetlb_vmemmap.h

diff --git a/mm/hugetlb_vmemmap.h b/mm/hugetlb_vmemmap.h
index 25bd0e0..2fcae92 100644 (file)
--- a/mm/hugetlb_vmemmap.h
+++ b/mm/hugetlb_vmemmap.h
@@ -10,15 +10,20 @@
 #define _LINUX_HUGETLB_VMEMMAP_H
 #include <linux/hugetlb.h>
 
-#ifdef CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
-int hugetlb_vmemmap_restore(const struct hstate *h, struct page *head);
-void hugetlb_vmemmap_optimize(const struct hstate *h, struct page *head);
-
 /*
  * Reserve one vmemmap page, all vmemmap addresses are mapped to it. See
- * Documentation/vm/vmemmap_dedup.rst.
+ * Documentation/mm/vmemmap_dedup.rst.
  */
 #define HUGETLB_VMEMMAP_RESERVE_SIZE   PAGE_SIZE
+#define HUGETLB_VMEMMAP_RESERVE_PAGES  (HUGETLB_VMEMMAP_RESERVE_SIZE / sizeof(struct page))
+
+#ifdef CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
+int hugetlb_vmemmap_restore_folio(const struct hstate *h, struct folio *folio);
+long hugetlb_vmemmap_restore_folios(const struct hstate *h,
+                                       struct list_head *folio_list,
+                                       struct list_head *non_hvo_folios);
+void hugetlb_vmemmap_optimize_folio(const struct hstate *h, struct folio *folio);
+void hugetlb_vmemmap_optimize_folios(struct hstate *h, struct list_head *folio_list);
 
 static inline unsigned int hugetlb_vmemmap_size(const struct hstate *h)
 {
@@ -38,12 +43,24 @@ static inline unsigned int hugetlb_vmemmap_optimizable_size(const struct hstate
        return size > 0 ? size : 0;
 }
 #else
-static inline int hugetlb_vmemmap_restore(const struct hstate *h, struct page *head)
+static inline int hugetlb_vmemmap_restore_folio(const struct hstate *h, struct folio *folio)
 {
        return 0;
 }
 
-static inline void hugetlb_vmemmap_optimize(const struct hstate *h, struct page *head)
+static long hugetlb_vmemmap_restore_folios(const struct hstate *h,
+                                       struct list_head *folio_list,
+                                       struct list_head *non_hvo_folios)
+{
+       list_splice_init(folio_list, non_hvo_folios);
+       return 0;
+}
+
+static inline void hugetlb_vmemmap_optimize_folio(const struct hstate *h, struct folio *folio)
+{
+}
+
+static inline void hugetlb_vmemmap_optimize_folios(struct hstate *h, struct list_head *folio_list)
 {
 }